820-01987-A 5V

[tipoti]

draws 00.10 amps

no fluid contact. motherboard is clean

PPBUS_G3H :12.29 Volt

 

[2informaticos]

What about 3V3_G3H_RTC and U7800 voltages?

 

[tipoti]

3V3_G3H_RTC : 3.3 volts coming and going. There is voltage for 5 seconds, then there is none. Then it comes again

I guess I need to remove the cage on the u7800. What voltages are required

 

[2informaticos]

T2 requires several AWAKE and SLPS2R voltages to start.

PPBUS_G3H also fluctuates?
Both USB-C ports have the same behavior?

Check diode mode to ground on all coils.

 

[tipoti]

PP1V1_SLPS2R : 1.1 Volt

PPBUS_G3H: 12.29 Volt volts coming and going. There is voltage for 15 seconds, then there is none. Then it comes again

Both USB-C ports have the same behavior? yes

u3200 region a little warm

 

[tipoti]

The u8472 is punctured I think. u8472 pin 1 was showing short with gnd. I removed the u8472 and r8455. R8455 pin1 short circuit Is u3900 faulty?

 

[2informaticos]

Pufff, very bad...